Read by QxMD icon Read

Weed use

Teresa Stemeseder, Eva Klinglmayr, Stephanie Moser, Lisa Lueftenegger, Roland Lang, Martin Himly, Gertie J Oostingh, Joerg Zumbach, Arne C Bathke, Thomas Hawranek, Gabriele Gadermaier
BACKGROUND: Allergen specific IgE antibodies are a hallmark of type I allergy. The aim of this cross-sectional study was to analyze the sensitization profiles of an Austrian adolescent population utilizing molecule-based IgE diagnosis. METHODS: Serum samples of 501 non-selected pupils from Salzburg, Austria, were tested in ImmunoCAP ISAC(®) for IgE reactivity to 112 single allergens. Sensitization profiles were assessed and statistically coordinated with reported allergies...
October 18, 2016: Allergy
Eric Lavigne, Antonio Gasparrini, David M Stieb, Hong Chen, Abdool S Yasseen, Eric Crighton, Teresa To, Scott Weichenthal, Paul J Villeneuve, Sabit Cakmak, Frances Coates, Mark Walker
BACKGROUND: Daily changes in aeroallergens during pregnancy could trigger early labor, but few investigations have evaluated this issue. This study aimed to investigate the association between exposure to aeroallergens during the week preceding birth and the risk of early delivery among preterm and term pregnancies. METHODS: We identified data on 225,234 singleton births that occurred in six large cities in the province of Ontario, Canada, from 2004 to 2011 (April to October) from a birth registry...
September 28, 2016: Epidemiology
Ren-Yu Qu, Jing-Fang Yang, Yu-Chao Liu, Qiong Chen, Ge-Fei Hao, Cong-Wei Niu, Zhen Xi, Guang-Fu Yang
BACKGOUND: Acetohydroxyacid synthase (AHAS; EC is the first common enzyme in the biosynthetic pathway leading to the branched-chain amino acids in plants and a wide range of microorganisms. With the long-term and wide application of AHAS inhibitors, weed resistance is becoming a global problem, which leads to an urgent demand for novel inhibitors to antagonize both wild-type and resistant AHAS. RESULTS: Pyrimidinyl-Salicylic acid derivatives, as one of the main classes of commercial AHAS herbicides, show potential anti-resistant bioactivity to wild-type and P197L mutant...
October 17, 2016: Pest Management Science
Jingchao Chen, Hongjuan Huang, Shouhui Wei, Zhaofeng Huang, Xu Wang, Chaoxian Zhang
Glyphosate is an important non-selective herbicide that is commonly used worldwide. However, evolved glyphosate-resistant (GR) weeds significantly affect crop yields. Unfortunately, the mechanisms underlying resistance in GR weeds, such as goosegrass (Eleusine indica L.), an annual weed found worldwide, have not been fully elucidated. In this study, transcriptome analysis was conducted to further assess the potential mechanisms of glyphosate resistance in goosegrass. The RNA-seq libraries generated 24,597,462 clean reads...
October 15, 2016: Plant Journal: for Cell and Molecular Biology
Parsa Tehranchian, Jason K Norsworthy, Nicholas E Korres, Scott McElroy, Shu Chen, Robert C Scott
Amazon sprangletop is problematic weed of rice in the midsouthern USA. Two biotypes of this species from rice fields approximately 100km apart in Louisiana were unaffected when sprayed with the labeled field rate of cyhalofop-butyl (314g ai ha(-1)) in 2008. Dose response studies were conducted to confirm the level of resistance to cyhalofop-butyl over a range of doses. Cross-resistance to acetyl-CoA carboxylase (ACCase)-inhibiting herbicides from two different chemical families and multiple herbicide resistance to other mechanisms of action were evaluated...
October 2016: Pesticide Biochemistry and Physiology
M Kurek, H Barchańska, M Turek
Potato is one of the most important crops, after maize, rice and wheat. Its global production is about 300 million tons per year and is constantly increasing. It grows in temperate climate and is used as a source of starch, food, and in breeding industry.Potato cultivation requires application of numerous agro-technical products, including pesticides, since it can be affected by insects, weeds, fungi, and viruses. In the European Union the most frequently used pesticides in potato cultivations check are: thiamethoxam, lambda-cyhalothrin and deltamethrin (insecticides), rimsulfuron (herbicide) and metalaxyl (fungicide)...
October 8, 2016: Reviews of Environmental Contamination and Toxicology
Abebe Nigussie, Sander Bruun, Thomas W Kuyper, Andreas de Neergaard
Municipal waste is usually composted with an N-rich substrate, such as manure, to increase the N content of the product. This means that a significant amount of nitrogen can be lost during composting. The objectives of this study were (i) to investigate the effect of split addition of a nitrogen-rich substrate (poultry manure) on nitrogen losses and greenhouse gas emissions during composting and to link this effect to different bulking agents (coffee husks and sawdust), and (ii) to assess the effect of split addition of a nitrogen-rich substrate on compost stability and sanitisation...
January 2017: Chemosphere
Dominik D Alexander, Paula E Miller, Ashley J Vargas, Douglas L Weed, Sarah S Cohen
The possible relationship between dietary cholesterol and cardiac outcomes has been scrutinized for decades. However, recent reviews of the literature have suggested that dietary cholesterol is not a nutrient of concern. Thus, we conducted a meta-analysis of egg intake (a significant contributor to dietary cholesterol) and risk of coronary heart disease (CHD) and stroke. A comprehensive literature search was conducted through August 2015 to identify prospective cohort studies that reported risk estimates for egg consumption in association with CHD or stroke...
October 6, 2016: Journal of the American College of Nutrition
Ting Wang, Zhen Wang, Guopei Chen, Chunbo Wang, Yingjuan Su
Two fundamental questions on how invasive species are able to rapidly colonize novel habitat have emerged. One asks whether a negative correlation exists between the genetic diversity of invasive populations and their geographic distance from the origin of introduction. The other is whether selection on the chloroplast genome is important driver of adaptation to novel soil environments. Here, we addressed these questions in a study of the noxious invasive weed, Mikania micrantha, which has rapidly expanded in to southern China after being introduced to Hong Kong in 1884...
2016: Frontiers in Plant Science
Sally Elizabeth Hall, Brett Nixon, R John Aitken
Feral horses are a significant pest species in many parts of the world, contributing to land erosion, weed dispersal and the loss of native flora and fauna. There is an urgent need to modify feral horse management strategies to achieve public acceptance and long-term population control. One way to achieve this is by using non-surgical methods of sterilisation, which are suitable in the context of this mobile and long-lived species. In this review we consider the benefits of implementing novel mechanisms designed to elicit a state of permanent sterility (including redox cycling to generate oxidative stress in the gonad, random peptide phage display to target non-renewable germ cells and the generation of autoantibodies against proteins essential for conception via covalent modification) compared with that of traditional immunocontraceptive approaches...
October 5, 2016: Reproduction, Fertility, and Development
Maria Pia Gatto, Renato Cabella, Monica Gherardi
OBJECTIVE: This study investigates the possible influence of global climate change (GCC) on exposure to plant protection products (PPP) in the workplace. METHODS: The paper has evaluated the main potential relationships between GCC and occupational exposure to pesticides, by highlighting how global warming might affect their future use and by reviewing its possible consequence on workers' exposure. RESULTS: Global warming, influencing the spatial and temporal distribution and proliferation of weeds, the impact of already present insect pests and pathogens and the introduction of new infesting species, could cause a changed use of pesticides in terms of higher amounts, doses and types of products applied, so influencing the human exposure to them during agricultural activities...
July 2016: Annali Dell'Istituto Superiore di Sanità
Pierre Hellin, Jonathan Scauflaire, Viviane Van Hese, Françoise Munaut, Anne Legrève
BACKGROUND: Fusarium culmorum is a fungal pathogen occurring worldwide on various weeds and important crops. Triazoles have been shown to be the most effective fungicide for managing Fusarium spp. but little is known about their specific activity on F. culmorum. RESULTS: The sensitivity of 107 F. culmorum strains to triazoles was assessed using microtiter plate assays. The EC50 values ranged from 0.14 to 1.53 mg L (-1) for tebuconazole and from 0.25 to 2.47 mg L (-1) for epoxiconazole...
October 3, 2016: Pest Management Science
Marco Napoli, Anna Dalla Marta, Camillo A Zanchi, Simone Orlandini
Worldwide, glyphosate is the most widely used herbicide in controlling the growth of annual and perennial weeds. An increasing number of studies have highlighted the environmental risk resulting from the use of this molecule in aquatic and terrestrial ecosystems. The objective of the study was to determine the transport of glyphosate and its degradation product, aminomethylphosphonic acid (AMPA), through runoff and transported sediment from a vineyard under two different soil management systems: harrowed inter-row (HR) and permanent grass covered inter-row (GR)...
September 2016: Journal of Environmental Quality
Oratai Neamsuvan, Pattaraporn Bunmee
ETHNOPHARMACOLOGICAL RELEVANCE: Skin diseases are common health problems which affecting to all ages. In Thailand, the number of patients diagnosed with skin diseases is increasing every year. Nowadays, The Ministry of Public Health is supporting and promoting herbs for treating various disorders, including disorders of the skin to reduce the problem of antibiotic resistance and adverse drug reactions. This study aimed to: (1) enumerate the herbal weeds for treating skin disorders; (2) study local knowledge of weed utilization for treating skin disorders according to the folk healers in Songkhla and Krabi province; and (3) study quantitative data by Informant consensus factor (ICF), Use value (UV) and Fidelity level (FL) value...
September 27, 2016: Journal of Ethnopharmacology
Andrew J Dougill, Stephen Whitfield, Lindsay C Stringer, Katharine Vincent, Benjamin T Wood, Edna L Chinseu, Peter Steward, David D Mkwambisi
Conservation agriculture (CA) practices of reduced soil tillage, permanent organic soil coverage and intercropping/crop rotation, are being advocated globally, based on perceived benefits for crop yields, soil carbon storage, weed suppression, reduced soil erosion and improved soil water retention. However, some have questioned their efficacy due to uncertainty around the performance and trade-offs associated with CA practices, and their compatibility with the diverse livelihood strategies and varied agro-ecological conditions across African smallholder systems...
September 29, 2016: Journal of Environmental Management
Suzanne L Ishaq, Stephen P Johnson, Zach J Miller, Erik A Lehnhoff, Sarah Olivo, Carl J Yeoman, Fabian D Menalled
Farming practices affect the soil microbial community, which in turn impacts crop growth and crop-weed interactions. This study assessed the modification of soil bacterial community structure by organic or conventional cropping systems, weed species identity [Amaranthus retroflexus L. (redroot pigweed) or Avena fatua L. (wild oat)], and living or sterilized inoculum. Soil from eight paired USDA-certified organic and conventional farms in north-central Montana was used as living or autoclave-sterilized inoculant into steam-pasteurized potting soil, planted with Am...
September 27, 2016: Microbial Ecology
Birgit M Dietz, Atieh Hajirahimkhan, Tareisha L Dunlap, Judy L Bolton
Botanical dietary supplements are increasingly popular for women's health, particularly for older women. The specific botanicals women take vary as a function of age. Younger women will use botanicals for urinary tract infections, especially Vaccinium macrocarpon (cranberry), where there is evidence for efficacy. Botanical dietary supplements for premenstrual syndrome (PMS) are less commonly used, and rigorous clinical trials have not been done. Some examples include Vitex agnus-castus (chasteberry), Angelica sinensis (dong quai), Viburnum opulus/prunifolium (cramp bark and black haw), and Zingiber officinale (ginger)...
October 2016: Pharmacological Reviews
Samantha H Weed-Pfaff, Benjamin Nutter, James F Bena, Jennifer Forney, Rosemary Field, Lynn Szoka, Diana Karius, Patti Akins, Christina M Colvin, Nancy M Albert
BACKGROUND: A seven-item cancer-specific fall risk tool (Cleveland Clinic Capone-Albert [CC-CA] Fall Risk Score) was shown to have a strong concordance index for predicting falls; however, validation of the model is needed. OBJECTIVES: The aims of this study were to validate that the CC-CA Fall Risk Score, made up of six factors, predicts falls in patients with cancer and to determine if the CC-CA Fall Risk Score performs better than the Morse Fall Tool. METHODS: Using a prospective, comparative methodology, data were collected from electronic health records of patients hospitalized for cancer care in four hospitals...
October 1, 2016: Clinical Journal of Oncology Nursing
Xia Yang, Zichang Zhang, Tao Gu, Mingchao Dong, Qiong Peng, Lianyang Bai, Yongfeng Li
: Barnyardgrass (Echinochloa crus-galli) is one of the top 15 herbicide-resistant weeds around the world that interferes with rice growth, resulting in major losses of rice yield. Thus, multi-herbicide resistance in barnyardgrass presents a major threat, with the underlying mechanisms that contribute to resistance requiring elucidation. In an attempt to characterize this multi-herbicide resistance at the proteomic level, comparative analysis of resistant and susceptible barnyardgrasses was performed using iTRAQ, both with and without quinclorac, bispyribac-sodium and penoxsulam herbicidal treatment...
September 23, 2016: Journal of Proteomics
Shraddha Khamparia, Dipika Jaspal
The present study aims at exploring the potential of the seeds of a tropical weed, Argemone mexicana (AM), for the removal of a toxic xanthene textile dye, Rhodamine B (RHB), from waste water. Impact of pH, adsorbent dosage, particle size, contact time and dye concentration have been assessed during adsorption. The weed has been well characterized by several latest techniques thereby providing an indepth information of the mechanism during adsorption. About 80% removal has been attained with 0.06 g of adsorbent over the studied system...
December 1, 2016: Journal of Environmental Management
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"